DE3260969D1 - Directly heated cathode and method of making it - Google Patents

Directly heated cathode and method of making it

Info

Publication number
DE3260969D1
DE3260969D1 DE8282400030T DE3260969T DE3260969D1 DE 3260969 D1 DE3260969 D1 DE 3260969D1 DE 8282400030 T DE8282400030 T DE 8282400030T DE 3260969 T DE3260969 T DE 3260969T DE 3260969 D1 DE3260969 D1 DE 3260969D1
Authority
DE
Germany
Prior art keywords
making
directly heated
heated cathode
cathode
directly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282400030T
Other languages
German (de)
English (en)
Inventor
Guy Clerc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9254238&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3260969(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3260969D1 publication Critical patent/DE3260969D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
DE8282400030T 1981-01-16 1982-01-08 Directly heated cathode and method of making it Expired DE3260969D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8100782A FR2498372A1 (fr) 1981-01-16 1981-01-16 Cathode a chauffage direct, son procede de fabrication, et tube electronique incorporant une telle cathode

Publications (1)

Publication Number Publication Date
DE3260969D1 true DE3260969D1 (en) 1984-11-22

Family

ID=9254238

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282400030T Expired DE3260969D1 (en) 1981-01-16 1982-01-08 Directly heated cathode and method of making it

Country Status (5)

Country Link
US (1) US4577134A (ja)
EP (1) EP0056749B1 (ja)
JP (1) JPS57138744A (ja)
DE (1) DE3260969D1 (ja)
FR (1) FR2498372A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148441A1 (de) * 1981-12-08 1983-07-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung einer thermionischen kathode
US4810926A (en) * 1987-07-13 1989-03-07 Syracuse University Impregnated thermionic cathode
DE4026300A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre
DE69409306T2 (de) * 1993-07-29 1998-07-30 Nec Corp Thermisch emittierende Kathode, Herstellungsverfahren einer solchen thermisch emittierende Kathode und Elektronenstrahl-Gerät
FR2733856B1 (fr) * 1995-05-05 1997-08-29 Thomson Tubes Electroniques Cathode pour canon a electrons a grille, grille destinee a etre associee avec une telle cathode et canon a electrons comportant une telle cathode
FR2775118B1 (fr) 1998-02-13 2000-05-05 Thomson Tubes Electroniques Grille pour tube electronique a faisceau axial a performances ameliorees
FR2789800B1 (fr) 1999-02-16 2001-05-11 Thomson Tubes Electroniques Generateur radiofrequence de tres grande puissance
DE102008020187A1 (de) * 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode mit einem Flachemitter
CN106756169B (zh) * 2011-12-20 2018-07-17 株式会社东芝 钨合金、以及使用该钨合金的钨合金部件、放电灯、发射管和磁控管
US20170330725A1 (en) * 2016-05-13 2017-11-16 Axcelis Technologies, Inc. Lanthanated tungsten ion source and beamline components

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389977A (en) * 1964-08-05 1968-06-25 Texas Instruments Inc Tungsten carbide coated article of manufacture
US3719856A (en) * 1971-05-19 1973-03-06 O Koppius Impregnants for dispenser cathodes
CH582951A5 (ja) * 1973-07-09 1976-12-15 Bbc Brown Boveri & Cie
NL175480C (nl) * 1974-06-12 1984-11-01 Philips Nv Elektrode voor een ontladingslamp, werkwijze voor de vervaardiging van een dergelijke elektrode en ontladingslamp voorzien van een dergelijke elektrode.
CH579824A5 (ja) * 1974-10-25 1976-09-15 Bbc Brown Boveri & Cie
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
JPS6053418B2 (ja) * 1976-08-09 1985-11-26 株式会社日立製作所 電子管陰極構体
DE2732960C2 (de) * 1977-07-21 1982-04-01 Philips Patentverwaltung Gmbh, 2000 Hamburg Glühkathode und Verfahren zu ihrer Herstellung
DE2838020B2 (de) * 1978-08-31 1981-04-02 Siemens AG, 1000 Berlin und 8000 München Direkt geheizte Kathode für eine Elektronenröhre mit koaxialem Elektrodenaufbau und Verfahren zu ihrer Herstellung
FR2445605A1 (fr) * 1978-12-27 1980-07-25 Thomson Csf Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode

Also Published As

Publication number Publication date
JPS57138744A (en) 1982-08-27
EP0056749A3 (en) 1982-08-25
EP0056749A2 (fr) 1982-07-28
FR2498372A1 (fr) 1982-07-23
US4577134A (en) 1986-03-18
EP0056749B1 (fr) 1984-10-17
FR2498372B1 (ja) 1983-07-22

Similar Documents

Publication Publication Date Title
GB2105181B (en) Humpback oven-broiler and method of cooking
GB2154407B (en) Heating element and method of manufacture
DE3274758D1 (en) Method of cooking
JPS57192325A (en) Manufacture of alpha-arylalkanoic acids and precurcors therefor
DE3260969D1 (en) Directly heated cathode and method of making it
DE3270679D1 (en) Method of making an assembly of electrodes
ZA837157B (en) Method of making an ore concentrator and concentrator thus made
ZA823101B (en) Cathode structure and method of making same
JPS5750783A (en) Heater and method of producing same
JPS57182936A (en) Thermionic cathode and method of producing same
JPS57118333A (en) Indirect heating type welnelt cathode and method of using same
JPS57169204A (en) Method of forming electrode
GB2014063B (en) Electrical heater and method of making
JPS57127062A (en) Cross material of tokonoma and method
JPS5772289A (en) Heater and method of producing same
JPS57143803A (en) Method of forming resisotr
DE3264426D1 (en) Method of making arylhydrazine-n-sulphonic acids
JPS57176615A (en) Contact and method of producing same
JPS57182974A (en) Method of producing electrode
JPS56132788A (en) Sealed heater and method of producing same
JPS56143692A (en) Heater and method of manufacturing same
JPS57117294A (en) Method of soldering part
JPS57152186A (en) Method of soldering part
JPS57178314A (en) Porcelain condenser and method of producing same
JPS57134805A (en) Method of connecting insulating material

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation